Revising Made Easy - Airway PDF

REVISING MADE EASY Use Sequence: Recall AIRWAY LARYNX Tongue: Has underlying tissue & muscle-so when brain is 1.Protects vocal cords suppressed (from anaesthetic/...

REVISING MADE EASY Use Sequence: Recall AIRWAY LARYNX Tongue: Has underlying tissue & muscle-so when brain is 1.Protects vocal cords suppressed (from anaesthetic/ 2. Facilitates sound and speech Sedation/unconsciousness-faint) 3. Helps us to cough 4.Controls tension of vocal cords Then it’s the biggest cause of during breathing Airway obstruction! Its connected 1 BONE: Hyoid To the mandible that’s why jaw 9 Cartilages (3 paired, 3 single) Thrust is effective.. SINGLE ONES: Epiglottis (flap over Pharyngeal Reflex (gag reflex): trachea-stops food)/Thyroid If any foreign objects enter (biggest one-Adam’s apple- back of tongue, there are sensory attaches muscles)/Cricoid (signet vagus and glossopharyngeal ring-cricoid pressure) nerves LARYNX IS IMPORTANT! PAIRED: Arytenoid Cartilage which send message to (control movement of vocal cords). PROTECTS VOCAL CORDS Medulla Oblongata, but this centre Corniculate Cartilage (plays a is close to the vomiting, salivary and role in relaxing-tensing vocal cords cardiac centres which all which may for sound) be stimulated during gagging. Cuneiform Cartilage (connects Epiglottis to laryngeal tissues) Laryngeal Reflex: SEE NERVES SLIDES AND WHERE This reflex is much lower down- EACH SUPPLIES TO. Prevents things from getting in to REMEMBER TO LEARN DAS The trachea by closing the vocal GUIDELINE! Cords. The nerves that sense mucosa Are: sensory nerves & Superior Laryngeal nerve. Send message to Medulla of brainstem. Message sent Look at the angle of the right & Left Down via Recurrent Laryngeal nerve BRONCHUS! Which contracts muscle (thyro- ET Tube slips into right cos of angle: Arytenoid)-closes vocal cords. Right anterior (towards chest)-Left Posterior (towards bum)-cos of aorta REVISING MADE EASY